December weather forecast
Bangor, ME

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The neon-lit city of Bangor, Maine, at night with the clear sky and neon lights reflected in the water below
The neon-lit city of Bangor, Maine, at night with the clear sky and neon lights reflected in the water below

Weather in December

Come December, the city of Bangor, Maine is fully engrossed into the harsh and nerve-chilling winter season. Snowfall spikes up, with a whopping 5.75" (146mm) of snow typically blanketing the town across 10.3 days on average. The shortened daylight of 8.9 hours and a high temperature not exceeding 32.4°F (0.2°C) adds to the cold, wintry feel of this month. Despite the extreme conditions, the festive spirit of the end-of-year holidays keeps the city vibrant and lively. The continuous snowfall and the freezing temperatures define a white Christmas in the city, marking an end to the annual weather cycle.

Temperature

Welcoming December, Bangor observes a shift in the average high-temperature, falling from November's frosty 43.3°F (6.3°C) to a cold 32.4°F (0.2°C). During the month of December, an average low-temperature of 21.9°F (-5.6°C) is recorded.

Humidity

The average relative humidity in December is 81%.

Rainfall

December is the month with the most rainfall in Bangor. Rain falls for 11 days and accumulates 3.27" (83mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Bangor, Maine, in December, during 10.3 snowfall days, 5.75" (146mm) of snow is typically accumulated. In Bangor, during the entire year, snow falls for 58 days and aggregates up to 34.09" (866mm) of snow.

Daylight

The month with the shortest days in Bangor, Maine, is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 6:53 am and sunset at 3:55 pm. On the last day of December, in Bangor, sunrise is at 7:12 am and sunset at 4:04 pm EST.

Sunshine

The average sunshine in December in Bangor is 4.4h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

How cold is it in Bangor in December?

The average high-temperature and low-temperature in Bangor, Maine, during December are 32.4°F (0.2°C) and 21.9°F (-5.6°C) respectively.

What is the average humidity in December in Bangor?

The average relative humidity in December in Bangor is 81%.

What is the rainiest month in Bangor?

December is the month with the most rainfall. Rain falls for 11 days and accumulates 3.27" (83mm) of precipitation.

How much does it rain in Bangor in December?

In Bangor, Maine, in December, during 11 rainfall days, 3.27" (83mm) of precipitation is typically accumulated.

How many days does it snow in December in Bangor?

In Bangor, Maine, in December, snow falls for 10.3 days, with typically accumulated 5.75" (146mm) of snow.

What is the month with the shortest days in Bangor?

The month with the shortest days in Bangor is December, with an average of 8h and 54min of daylight.

How many hours of daylight does Bangor have in December?

In December, the average day length in Bangor, Maine, is 8h and 52min.

When are sunrise and sunset in December in Bangor?

In December, on the first day of the month, sunrise is at 6:53 am and sunset at 3:55 pm. On the last day of the month, in Bangor, Maine, sunrise is at 7:12 am and sunset at 4:04 pm EST.

How many hours of sunshine does Bangor have in December?

The average sunshine duration in December in Bangor, Maine, is 4.4h.

What is the month with the lowest UV index in Bangor?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Bangor, Maine.

How high is the UV index in December in Bangor?

The average daily maximum UV index in December in Bangor is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bangor, ME

Average temperature in December - Bangor, ME
  • Average high temperature in December: 32.4°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in December: 21.9°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in December
Bangor, ME

Average pressure in December - Bangor, ME
  • Average pressure in December: 30"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in December
Bangor, ME

Average wind speed in December - Bangor, ME
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Bangor, ME

Average humidity in December - Bangor, ME
  • Average humidity in December: 81%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and May (77%).

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Average rainfall in December
Bangor, ME

Average rainfall in December - Bangor, ME
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (1.61").

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Average rainfall days in December
Bangor, ME

Average rainfall days in December - Bangor, ME
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (8.1 days).

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Average snowfall in December
Bangor, ME

Average snowfall in December - Bangor, ME
  • Average snowfall in December: 5.75"

The month with the highest snowfall is January (8.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Bangor, ME

Average snowfall days in December - Bangor, ME
  • Average snowfall days in December: 10.3 days

The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Bangor, ME

Average daylight in December / Average sunshine in December - Bangor, ME
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

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Average sunshine days in December
Bangor, ME

Average sunshine days in December - Bangor, ME
  • Average sunshine days in December: 13.5 days

The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is April (10.3 days).

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Average UV index in December
Bangor, ME

Average UV index in December - Bangor, ME
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in December
Bangor, ME

Average cloud cover in December - Bangor, ME
  • Average cloud cover in December: 52

The months with the most cloud cover are February and March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 38).

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Average visibility in December
Bangor, ME

Average visibility in December - Bangor, ME
  • Average visibility in December: 6mi

The months with the highest visibility are October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August and September (5mi).

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Bangor, Maine, USA

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